Classified as an enclosure, first in 1992 and again in 1996, the feature appeared on the 1923 edition of the Ordnance Survey six-inch map marked with hachures, the small radiating lines cartographers use to indicate a raised or bounded earthwork. To anyone reading the map or the records, it looked like a candidate for an early historic or prehistoric enclosure, the kind of circular earthen boundary that can surround a settlement, a burial site, or a ceremonial space.

When the site was physically inspected in 2003, the reality turned out to be considerably more mundane. The feature was a quarried area, roughly 21 metres from north to south, 6 metres east to west, and just over a metre deep. No enclosure, no archaeology in the expected sense, simply a worked hollow in the ground where stone or material had been extracted at some point. The cartographic signature that suggested an ancient boundary was almost certainly the mapmaker's rendering of the quarry's rim and sloped edges, which from an overhead perspective or a hasty ground survey could reasonably be mistaken for an earthwork of historical significance.

The site is a small illustration of how landscape features accumulate misreadings over time. An ambiguous mark on a century-old map feeds into a formal classification, the classification persists across successive records, and a quarry spends decades wearing the label of an enclosure. The correction, when it came, required someone to actually stand in the field and look.